OSI Model dan TCP Model

OSI Reference Layer

1. Physical Layer
2. Data-Link Layer
3. Network Layer
4. Transport Layer
5. Session Layer
6. Presentation Layer
7. Application Layer

DARPA Reference Model

1. Network Interface Layer
2. Internetwork Layer
3. Host-to-Host Layer
4. Application Layer

TCP/IP Protocol Suite

1. Network Access Layer
2. Internet Layer
3. Transport Layer
4. Application Layer

Layers > Physical Layer 
Data Unit > Bits

Lapisan ini mendefinisikan antarmuka dan mekanisme untuk meletakkan bit-bit data di atas media jaringan (kabel, radio, atau cahaya)

1. Kabel UTP/STP/Koaksial/Fiber Optik
2. Kartu Jaringan / Network Interface Card (NIC)
3. RS-232 / Kabel Serial Console
3. Repeater / HUB

Layers > Data-Link Layer
Data Unit > Frames

Layers > Network Layer
Data Unit > Packets

Layers > Transport Layer
Data Unit > Segments

Layers > Session Layer
Data Unit > Data

Layers > Persentation Layer 
Data Unit > Data

Layers > Application Layer
Data Unit > Data

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